CN111728248A

CN111728248A - Tobacco loading equipment for improving grade of tobacco leaves after baking

Info

Publication number: CN111728248A
Application number: CN202010660013.7A
Authority: CN
Inventors: 毛娟; 康雪莉; 李高坡; 崔江宽
Original assignee: Zhengzhou Siyi Industrial Design Co ltd
Current assignee: QINGDAO DONGFANG DIVINE MACHINERY CO Ltd
Priority date: 2020-07-10
Filing date: 2020-07-10
Publication date: 2020-10-02
Anticipated expiration: 2040-07-10
Also published as: CN111728248B

Abstract

The invention belongs to the field of tobacco planting, and particularly relates to tobacco loading equipment for improving the grade of tobacco leaves after baking. The equipment comprises a case, and a tobacco leaf suction device, a tobacco leaf transmission device and a tobacco leaf placing device which are arranged in the case, wherein the top of the case is fixedly provided with a tobacco leaf feeding device, and the case is provided with a tobacco outlet corresponding to the tobacco leaf placing device; the tobacco leaf baking and modulating device can quickly and effectively realize the ordered equidistant arrangement of the tobacco leaves, improve the reasonable layout of the internal space of the baking room after the tobacco is loaded, ensure that hot air can flow at uniform speed and smoothly, and improve the baking and modulating quality of the tobacco leaves.

Description

Tobacco loading equipment for improving grade of tobacco leaves after baking

Technical Field

The invention belongs to the field of tobacco planting, and particularly relates to tobacco loading equipment for improving the grade of tobacco leaves after baking.

Background

The method has the advantages that the influence of the severe weather environment on the growth of tobacco plants is eliminated, the quality of tobacco leaves produced by the tobacco plants of the flue-cured tobacco variety is mainly influenced by two aspects of field management and baking modulation, the field management mainly manages the growth of the tobacco plants, and the stage comprises the steps of transplanting, fertilizing, pest control, topping and the like, so that the uniform yellowing and uniform harvesting of the tobacco leaves in the same part and the tobacco leaves in the same land are ensured; the baking modulation mainly heats the tobacco leaves harvested in the field, so that the tobacco leaves are dehydrated, the internal components are chemically converted and reacted in the environment, the contents of various components are more coordinated, and particularly, the Maillard reaction can improve the generation of the internal aroma components, thereby improving the appearance and the smoking quality of the tobacco leaves.

Generally, the tobacco leaf baking in the prior art basically adopts a three-stage baking process of bulk curing barn operation, i.e. the tobacco leaves need to undergo a yellowing stage, a color fixing stage and a stem drying stage, and the principle is as follows: tobacco leaves are hung inside the curing barn in a layered mode, then the curing barn is externally heated by coal and heat exchange between the combustion chamber and the curing barn is realized through a pipeline, hot air flow inside the curing barn rises to heat the tobacco leaves, and meanwhile, discharged water is carried to the outside. Because the quantity of the tobacco leaves in the curing barn is large, how to regulate the tobacco filling mode of the tobacco leaves enables hot air to flow in the curing barn uniformly, the method is one of necessary conditions for high-level curing and modulation, otherwise, insufficient water drainage and insufficient heating are easily caused, the tobacco leaves are difficult to fix color, even the phenomena of rib feathering, grain bleeding, ash hanging and the like of the tobacco leaves occur, not only heat energy is wasted, but also the purchasing price and the use quality of the tobacco leaves at the grade are extremely low.

The cigarette loading mode in the prior art is divided into three types: tobacco stem, cigarette clamp and cigarette frame, the tobacco leaf is placed in disorder in cigarette clamp and the cigarette frame, but dress cigarette is efficient, be fit for factory formula and toast modulation operation, the tobacco stem utilizes the cotton rope to compile the tobacco leaf and ties up on the bamboo pole, then hang into a supporting beam in the baking house with the bamboo pole layering on, this kind of dress cigarette mode is comparatively traditional, though toast the effect better than cigarette clamp and cigarette frame, but extremely take the manual work, and work efficiency is low, manual work is compiled the cigarette simultaneously and is caused a large amount of friction injuries between the tobacco leaf easily, and also unable accurate control tobacco leaf range interval, and then can not improve the even speed that the hot gas flow flows by a wide margin yet, the smoothness nature.

Disclosure of Invention

The invention aims to provide tobacco loading equipment for improving the grade of tobacco leaves after being cured, which can quickly and effectively realize ordered equidistant arrangement of the tobacco leaves, improve the reasonable layout of the internal space of a curing barn after the tobacco leaves are loaded, ensure that hot air can flow at uniform speed and smoothly, and improve the curing and modulating quality of the tobacco leaves.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

a tobacco loading device for improving the grade of tobacco leaves after being cured comprises a machine case, and a tobacco leaf suction device, a tobacco leaf transmission device and a tobacco leaf placing device which are arranged in the machine case, wherein a tobacco inlet device is fixedly arranged at the top of the machine case, and a tobacco outlet is formed in the machine case corresponding to the tobacco leaf placing device;

the tobacco leaf transmission device comprises three transmission wheels and a transmission belt, wherein the three transmission wheels are positioned in the same vertical plane, the connecting line of the wheel centers is in a right triangle shape, the transmission belt is tensioned to form a horizontal section, a vertical section and an inclined section which are sequentially arranged, and the transmission wheels at the horizontal section and the inclined section are connected with the output end of the motor;

the tobacco leaf suction device comprises a negative pressure suction nozzle arranged on the horizontal section of the transmission belt and a negative pressure mechanism communicated with the negative pressure suction nozzle;

the tobacco leaf placing device comprises a placing frame arranged beside the vertical section of the transmission belt and a plate shifting mechanism arranged beside the placing frame, the plate shifting mechanism comprises two belt pulleys arranged up and down and a belt tensioned by the two belt pulleys, and the belt is provided with two shifting plates at equal intervals; the belt pulley at the bottom is in transmission connection with a transmission wheel of the tobacco leaf transmission device through a one-way transmission mechanism;

a plurality of horizontally extending through holes are formed in a frame plate of the placing frame at equal intervals from top to bottom, one end of the placing plate in the width direction penetrates through the corresponding through hole, and the other end of the placing plate is in intermittent contact with a shifting plate of the shifting plate mechanism;

the cigarette feeding device comprises a rectangular cigarette feeding pipe, the length direction of the cigarette feeding pipe is perpendicular to a transmission belt, two sides of the length direction of the bottom of the cigarette feeding pipe are integrally connected with guide plates, the bottoms of the guide plates are away from each other, limiting plates extending horizontally and oppositely are fixedly arranged at the bottoms of the guide plates, two equal-height and parallel support rods are arranged between the guide plates, each support rod is arranged by being attached to the inner wall of each guide plate and is connected with two support wheels through a support pin shaft, the support wheels on the two support rods are oppositely and correspondingly arranged, the end parts of the two support rods are respectively and fixedly connected with the two ends of a telescopic rod, and the telescopic rod is horizontally arranged;

the tobacco feeding device also comprises a driving wheel arranged on the guide plate close to the tobacco placing device, the driving wheel and a first driven wheel are coaxially arranged, the first driven wheel is driven by a first belt with a first tension wheel above the first driven wheel, a second driven wheel and a second tension wheel are correspondingly arranged on the other guide plate in a belt transmission way by matching with a second belt, and the first belt and the second belt are arranged in parallel with the corresponding guide plates and are connected with the support rods on the corresponding guide plates; the driving wheel is in transmission connection with a driving wheel arranged on a wheel shaft of the driving wheel at the horizontal section and the vertical section of the driving belt through a belt or a chain.

Preferably, the negative pressure suction nozzle comprises a silica gel suction nozzle with an upper opening and a lower opening and a sealing cylinder with a closed bottom and connected with the transmission belt, and the top of the sealing cylinder is integrally connected with the bottom of the silica gel suction nozzle.

Preferably, the negative pressure mechanism comprises a bending pipe arranged in parallel with the horizontal section and the vertical section of the transmission belt, the bending pipe is hollow, two ends of the bending pipe are sealed, an exhaust fan is arranged at the bottom of the bending pipe, an air inlet of the exhaust fan is communicated with the bending pipe, and an air outlet of the exhaust fan is arranged away from the tobacco leaf placing device; the pipe of bending has seted up the channel on the body of drive belt, the channel both sides are equipped with the sticky tape piece that is used for shielding the channel, are connected and communicate the sealed section of thick bamboo of negative pressure suction nozzle, the sticky tape piece is expulsed to the other end with channel sliding fit's exhaust column one end and pass the channel and with the pipe intercommunication of bending after.

Preferably, the belt pulley at the bottom of the shifting plate mechanism is in transmission with the transmission wheels at the vertical section and the inclined section of the transmission belt through a one-way transmission mechanism, the one-way transmission mechanism comprises a first transmission rod and a second transmission rod which are respectively connected with the transmission wheels and the wheel center of the belt pulley,

a ratchet gear is fixedly arranged at the end part of the first transmission rod, the outside of the ratchet gear is arranged in one end of the sleeve and is meshed with a pawl in the sleeve, the pawl is arranged in a hinged seat on the inner wall of the sleeve and is limited by a torsion spring on the hinged seat to keep a state of being arranged towards the placing rack, and the other end of the sleeve is assembled with the inner wall of the case through a bearing;

the end part of the second transmission rod is provided with an indirect wheel which is connected with the sleeve in a transmission way through an indirect belt tensioned by the indirect wheel and the sleeve.

Preferably, the through-hole on the rack board is the slant hole, and the board of placing after cooperating with the through-hole is the inclined state that the one end towards the drive belt is last, the other end is down.

Preferably, one end of the placing plate facing the transmission belt is a length side of the placing plate, two ends of the placing plate are provided with limiting rods, a groove for placing tobacco leaves is formed in a plate body at the top of the placing plate, a first notch for a negative pressure suction nozzle to penetrate through is formed in the middle section of the length of the groove, a second notch for completely exposing a tobacco leaf stem is formed in one end of the groove in the length direction, and the depth of the groove is 1-2 mm.

Preferably, one end of the placing plate, which is far away from the transmission belt, that is, the other length side of the placing plate, is provided with a top plate in an upward inclined manner, and the top plate is arranged in parallel with the shifting plate of the plate shifting mechanism.

Preferably, the bottom edge of the shifting plate is in contact with the top edge of the top plate, and the bottom of the top plate is in top contact with the through hole for placing the plate body.

Preferably, the plate body of the placing plate is in clearance fit with the through holes in the frame plate of the placing frame, and the plane of the placing frame is perpendicular to the plane of the three driving wheels of the tobacco leaf driving device.

Preferably, the shaft levers of the driving wheel and the driven wheel are respectively connected with a shaft sleeve support preset on the guide plate through the shaft lever of the tensioning wheel, and notches used for matching with the wheel body of the wheel are formed in the guide plate corresponding to the driving wheel, the driven wheel and the tensioning wheel;

the first tensioning wheel is also coaxially arranged with a third driven wheel, the third driven wheel is in transmission with a third tensioning wheel arranged on the outer wall of the smoke inlet pipe through a third belt, the third tensioning wheel is coaxially provided with a smoke inlet driving gear, the smoke inlet driving gear is meshed with a smoke inlet driven gear below the smoke inlet driving gear, and the smoke inlet driven gear is coaxially arranged with the second tensioning wheel;

the first belt and the second belt are respectively arranged in parallel with the corresponding guide plates, a plurality of silica gel supporting plates are arranged on the first belt and the second belt at equal intervals, and the silica gel supporting plates on the belt section between the first guide plate and the second guide plate are used for bearing the corresponding supporting rods.

Specifically, in the tobacco loading process of the tobacco leaves, the whole process of the invention is as follows (the limited direction is as follows, the positive rotation of the output end of the motor can enable the transmission belt to drive the negative pressure suction nozzle to move towards the placing rack, and the negative rotation of the output end of the motor can enable the transmission belt to drive the negative pressure suction nozzle to move reversely):

the staff stacks the tobacco leaf with the tobacco leaf syntropy and advances in the tobacco pipe, and the leaf surface of tobacco leaf is down and the tobacco leaf falls on the wheel face of the supporting wheel of two die-pins under the dead weight effect promptly, and the supporting wheel supports the tobacco leaf blade, and the both sides limit contact supporting wheel of tobacco leaf width direction promptly supports. Then the motor and the exhaust fan are started, the exhaust fan extracts air in the bending pipe and the negative pressure suction nozzle, the channel on the bending pipe is shielded by the adhesive tape piece while the negative pressure suction nozzle is shielded by tobacco leaves, so a negative pressure state can be kept in the bending pipe and the negative pressure suction nozzle, the negative pressure suction nozzle continuously sucks the air above the bending pipe, when the negative pressure suction nozzle moves to the position under the tobacco leaf pipe, the lowest tobacco leaf in the tobacco leaf pipe is sucked and moves downwards, particularly the middle section of the width direction of the tobacco leaf surface is not in direct contact with the supporting wheel, so the tobacco leaf is pulled downwards most and moves downwards, the tobacco leaf moves relative to the supporting wheel (namely the supporting wheel rolls under the action of friction), the tobacco leaf is separated from the supporting wheel and covers the silica gel suction nozzle of the negative pressure suction nozzle, the protruded leaf vein on the tobacco leaf is positioned on the back surface, and the front surface is smooth, so the silica gel suction nozzle can be better shielded, therefore, after the current tobacco leaf is adsorbed by the negative pressure suction nozzle, the suction effect of the negative pressure suction nozzle on other tobacco leaves disappears. When the negative pressure suction nozzle continues to move along with the transmission belt, the negative pressure suction nozzle drives the exhaust pipe to move along the channel on the bent pipe, so that the inside of the negative pressure suction nozzle is always communicated with the inside of the bent pipe and keeps a negative pressure state, meanwhile, the exhaust pipe can extrude the adhesive tape piece at the current position when moving, and the adhesive tape piece at the previous position still keeps shielding the channel.

When the negative pressure suction nozzle moves to the lowest placing plate, the shifting plate on the shifting plate mechanism just moves upwards to push the placing plate to the maximum vertical height, the negative pressure suction nozzle moves downwards to a certain distance below the placing plate from the first notch of the placing plate, tobacco leaves adsorbed by the negative pressure suction nozzle are intercepted by the plate body of the placing plate at the first notch, so that the tobacco leaves are placed in the placing plate, meanwhile, the tobacco leaves slide downwards along the top plate surface of the placing plate under the action of gravity due to the fact that the placing plate is obliquely arranged, and the tobacco leaves can smoothly enter the groove of the placing plate; meanwhile, when the negative pressure suction nozzle moves downwards to penetrate through the first notch, the shifting plate can continue to move upwards along with the belt, the shifting plate is separated from the current placing plate at the moment, the placing plate moves downwards along the through hole under the action of self weight, and the depth of the groove is only 1-2mm, so that the leaves of the tobacco leaves can be completely placed in the groove, and the main vein of the tobacco leaves can be exposed outside the groove.

The motor reversal afterwards, the drive belt drives negative pressure suction nozzle reverse movement, because the tobacco leaf moves down along placing the board and along with placing the board from the initial position that the board was placed in the contact and moving down, its whole displacement is the lapse, so when placing the board along the through-hole back that the process that moves down finishes, the reverse movement of negative pressure suction nozzle can not blockked in the instant position of tobacco leaf. When negative pressure suction nozzle reverse movement and reach into the tobacco pipe under, the negative pressure suction nozzle adsorbs the tobacco leaf that advances the intraductal bottommost of cigarette again, then negative pressure suction nozzle removes to the bottommost place the board department of placing above the board, the operation is placed to repeated tobacco leaf, so the circulation is reciprocal, all place the blade of newly absorbing at every turn on the board is placed to the correspondence, and every places the board and all drive its tobacco leaf removal of accepting, make the tobacco leaf all keep its main arteries and veins to paste and lean on to place board plate body department and place, and the petiole exposes to the board of placing outward from second breach department completely. Then the staff stops motor work, prick the pole from the second breach department of placing the board with pricking of bottom sharpness, can be from last to passing the petiole of every tobacco leaf in order down, then upwards slightly promote to prick the pole, make the tobacco leaf with place the board separation, the gag lever post loses to lean on completely after blockking of tobacco leaf main pulse and places the board plate body, the tobacco leaf does not receive blockking of top gag lever post again promptly, can continue to carry to prick the pole and drive all tobacco leaves and take out from the mouth of cigarette of quick-witted case, the tobacco leaf on so pricking the pole can be equidistant distribution, then prick the pole with the several and hang in order to lean on and can accomplish the dress cigarette on the string roof beam in roast room.

The main veins of the tobacco leaves can be forced to be pressed at the through hole due to the falling of the placing plate, so that the end parts of the stems of the tobacco leaves on the placing rack are basically positioned on the same vertical line, the sharp-pointed parts of the binding rods can be accurately bound on the stems of the tobacco leaves, and the situation that the binding positions are different due to different sizes of the tobacco leaves is avoided. It should be noted here that the tobacco leaves are different from other crop leaves, the harvesting is divided into three batches of lower, middle and upper leaves, and the tobacco leaves are baked and modulated immediately after each harvesting, so the size difference of the tobacco leaves in the same batch is not particularly large, the tobacco leaves are large in size, the width of the main vein, particularly the end part of the vein, namely the leaf stalk, can reach 1-2cm, the thickness can reach 0.8-1.5cm, compared with the tobacco leaf with the thickness of 1-2mm, the main vein and the leaf stalk can completely bear the weight of the tobacco leaves, meanwhile, the main vein and the leaf stalk are used in the cigarette industry after modulation as tobacco stems, the value of the main vein and the leaf stalk is lower than that of the tobacco leaves, namely the tobacco shreds after the tobacco leaf stalks are modulated, the economic value is lower, and the main vein is.

Secondly, in the process, the transmission matching process of each mechanism of the application is as follows:

the invention only needs one motor as a power source to realize the orderly matching action of all the mechanisms, the output end of the motor rotates forwards for a certain time and drives the driving wheels at the horizontal section and the inclined section of the transmission belt to rotate, and the driving wheels drive the other two driving wheels and the negative pressure suction nozzle to move through the transmission of the transmission belt; meanwhile, the driving wheels at the vertical section and the inclined section of the driving belt drive the first driving rod to rotate positively, when the ratchet wheel at the end part of the first driving rod rotates positively, the pawl abuts against the wheel teeth of the ratchet wheel, the ratchet wheel drives the sleeve to rotate positively, and then the indirect wheel is driven to rotate positively through the indirect belt, and as the indirect wheel drives the belt pulley of the shifting plate mechanism and the corresponding belt to rotate positively through the second driving rod, the shifting plate close to the belt section at the placement frame is enabled to move upwards, and the shifting plate far away from the belt section at the placement frame is enabled to move downwards.

The in-process that the board that dials that is close to rack department belt section shifts up, the board roof of placing of the bottom on the rack can be contacted, because the roof of placing the board with dial the board parallel, so work as dial the board and shift up and contact when this roof of placing the board, make the roof drive and place the board and remove along corresponding through-hole, when dialling the board base and remove to the roof topside, the roof top of placing the board touches the through-hole, the displacement that makes progress of placing the board at this moment reaches the terminal point, dial the board and continue to move up the back, its roof separation with this place the board, this place the board and move and reset along the through-hole under the dead weight effect, dial the board of placing of board contact top simultaneously and make it shift up along the through-. So, along with shifting up of dialling the board, can push up in order and touch every and place the board for place the board on the rack by the lower supreme action of moving up and reseing in order, accomplish this action until the board of placing at top.

Meanwhile, the action of the shifting plate is driven by the connected belt, the transmission of the belt is indirect transmission based on the transmission belt, if the transmission belt moves forwards, the belt moves forwards, and if the transmission belt moves backwards, the belt moves backwards, and particularly the action of the shifting plate is up-and-down movement. But want to keep dialling the effect that the board pushed the board from bottom to top in order, dial the board and can only move up at the uniform velocity so, and can not do and move down, otherwise only can realize the relapse promotion to a certain board of placing. Therefore, the problem is solved through the one-way transmission mechanism, when the transmission belt moves forwards, the transmission wheel can finally realize the forward rotation of the belt and move the shifting plate upwards through the matching of the ratchet wheel and the pawl; when the transmission belt moves reversely, the ratchet gear rotates reversely and enables the pawl to rotate under the action of the torsion spring, and the sleeve cannot be driven to rotate reversely (because the sleeve and the indirect wheel tension the indirect belt, the friction force of the sleeve driving the indirect belt to rotate needs to be large enough, although the ratchet gear and the pawl have collision, the collision is far not enough to enable the sleeve to drive the indirect belt to rotate), and then the non-displacement action of the indirect belt, the indirect wheel and the plate shifting mechanism is realized. Therefore, the action of the shifting plate close to the placing plate can only be ensured to be upwards moved.

However, only by means of the one-way transmission device, the shifting plate can only move upwards, and the displacement cannot be guaranteed, so that the displacement of the shifting plate moving upwards at each time is guaranteed, and the placing plates on the placing frame are arranged at equal intervals, so that the tobacco leaves can be arranged at equal intervals on the binding rods. However, when the original position of the negative pressure suction nozzle is taken as a marking point, the positive movement amount of the negative pressure suction nozzle driven by the transmission belt every time is progressively reduced, namely, the negative pressure suction nozzle moves to the bottommost placing plate from the original position, and moves positively for the second time after reset, the negative pressure suction nozzle moves to the penultimate placing plate from the original position, the positive linear movement of the transmission belt is reduced, the number of rotation turns of the transmission belt is reduced, the positive belt linear movement of the plate shifting mechanism is reduced, the upward movement amount of the plate shifting mechanism is reduced, and finally the plate shifting mechanism cannot be smoothly matched with the action of the negative pressure suction nozzle to be in top contact with the placing plate.

Based on the problem, this application adopts following mode to solve, has set for the procedure through the singlechip to control the positive, reverse rotation mode and the operating time of motor, and the time of corotation and reversal is fixed at every turn, but the number of turns of corotation will be less a ration than the number of turns of reversal, and this ration is decided by the interval of two adjacent boards of placing. Embodied on the drive belt: the positive linear displacement of the transmission belt is less than the reverse linear displacement by one displacement, and the displacement is the distance between two adjacent placing plates; is embodied on the negative pressure suction nozzle: when the distance between two adjacent placing plates is A, the motor rotates forwards for the first time, the negative pressure suction nozzle moves to the place where the plate is placed at the bottommost part of the placing frame, for example, the forward movement displacement of the negative pressure suction nozzle is 10A at the moment, after the motor rotates backwards, the negative pressure suction nozzle moves backwards and exceeds the initial position by the length of A, and the reverse movement of the negative pressure suction nozzle is 11A at the moment; corotation of motor second time, negative pressure suction nozzle forward move and be 10A, just in time remove to the bottommost place board department of placing above the board, and after the motor reversal, negative pressure suction nozzle continues to make reverse movement and crosses initial position length and be 2A, and negative pressure suction nozzle reverse movement is 11A at this moment, so operation repeatedly, can ensure: 1) the linear displacement of the forward rotation of the transmission belt is fixed, and the linear displacement of the forward movement at each time is the same, so that the displacement of the shifting plate at each time is the same; 2) each positive movement enables the negative pressure suction nozzle to reach the correct position to place the tobacco leaves on the placing plate from top to bottom in sequence. Of course, how to realize the transmission calculation between the transmission wheel and the belt pulley of the plate shifting mechanism needs to be calculated according to the radiuses of the transmission wheel, the sleeve, the indirect wheel and the belt pulley, and the requirement that the ratio of the product of the radiuses of the transmission wheel and the indirect wheel and the product of the radiuses of the sleeve and the belt pulley = the ratio of the positive displacement of the negative pressure suction nozzle to the distance between two adjacent placing plates can be met.

Meanwhile, when the motor rotates forwards, a driving wheel of the motor drives a driving wheel to rotate through a belt or a chain, the driving wheel further drives a first driven wheel to rotate forwards through a shaft rod, the first driven wheel is matched with a first tension wheel to enable the first belt to rotate clockwise, meanwhile, the first tension wheel drives a third driven wheel to rotate, and the third belt drives a third tension wheel and a smoke inlet driving gear to rotate, so that a smoke inlet driven gear drives a second tension wheel and a second driven wheel to rotate, the rotation directions of the first belt and the second belt are opposite due to meshing of gears, the first belt and the second belt can support corresponding support rods to move upwards through silica gel support plates on belt bodies of the belt bodies, the support rods are arranged close to the guide plates, the guide plates are inclined plates, so that the process that the support rods move upwards is also a process that the two support rods move oppositely, and further support wheels on the two support rods can roll relative to the tobacco leaves to move towards the main veins of the tobacco leaves, to better hold the tobacco leaves above. When the motor rotates reversely, the processes are performed reversely, the supporting wheels on the two support rods can roll relative to the tobacco leaves and move away from the main veins of the tobacco leaves, and meanwhile, the tobacco leaves supported above the supporting wheels integrally descend, so that the tobacco leaves at the lowest part can be smoothly sucked by the negative pressure suction nozzle.

It should be noted that, although the transmission of the tobacco feeding device is also based on the transmission wheel, the transmission of the tobacco feeding device should not be affected by the number of forward turns of the transmission wheel being smaller than the number of reverse turns, otherwise the whole displacement of the tobacco leaves driven by the supporting rod is downward. In order to solve the problem, this application has set up the limiting plate, moves down and reach the limiting plate back when the die-pin every time, and it can't be moving down, but first, the second belt still does the action of pulling down it, and the silica gel layer board takes place to deform at this moment can in order to cross the die-pin. But each time the forward rotation is finished, the supporting rod can be kept to move to the top of the guide plate. Finally explained is: when the tobacco leaves are reversely rotated, the support rod drives the tobacco leaves to descend, so that the tobacco leaves can be conveniently sucked by the reversely-moved negative pressure suction nozzle; when the tobacco leaves are positively rotated, the tobacco leaves are driven to rise by the supporting rod because the negative pressure suction nozzle sucks the tobacco leaves.

More specifically, the corresponding displacement amount and the forward and reverse rotation speeds and time periods of the motor must be calculated according to the actual size of the mechanism.

Finally, it should be noted that, although the present application does not describe in detail how the corresponding mechanisms such as the driving wheels, the motors, the placing racks, etc. are supported, as a common knowledge, the corresponding wheels may be connected to the chassis through the shaft rods to realize the support, and the corresponding motors may be connected to the chassis through the base, the plate bodies through the support rods, etc., because the actions in the present application only relate to the vertical plane, the corresponding support connection mechanisms do not affect the corresponding actions at all.

Compared with the prior art, the invention has the following advantages:

1) this application design benefit through mutual transmission and the cooperation of a plurality of mechanisms, can only accomplish absorption, transmission and arrange in proper order under the effect of a power supply, for the many power unit among the prior art, has practiced thrift the manufacturing cost and the maintenance cost of machinery by a wide margin.

2) This application structure is comparatively simple, and convenient operation for manual pole of plaiting article among the prior art, work efficiency promotes by a wide margin, presss from both sides and plaits these three kinds of modes of pole for cigarette frame, cigarette moreover, can regular tobacco leaf's interval completely, improves the inside air current unobstructed nature of baking house after the dress cigarette, improves the tobacco leaf and toasts modulation quality.

Drawings

FIG. 1 is a schematic view of the internal structure of a box of a cigarette loading device according to an embodiment;

FIG. 2 is a schematic view of the connection of the tobacco leaf drive, uptake and placement device of the apparatus of FIG. 1;

FIG. 3 is a schematic view of the smoke inlet device of the apparatus shown in FIG. 1;

FIG. 4 is a schematic view of a support rod of the smoke inlet device of the apparatus shown in FIG. 1;

FIG. 5 is a schematic structural diagram of a plate-pulling mechanism in the apparatus shown in FIG. 1;

FIG. 6 is a schematic structural diagram of a bending pipe in the device shown in FIG. 1;

fig. 7 is a schematic view of the structure of the placing plate in the device shown in fig. 1.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1-7, a tobacco loading device for improving the grade of tobacco leaves after being cured comprises a machine case (not shown in the figures), a tobacco leaf suction device 2, a tobacco leaf transmission device 1 and a tobacco leaf placing device 3 which are arranged in the machine case, wherein a tobacco feeding device 7 is fixedly arranged at the top of the machine case, and a tobacco outlet (not shown in the figures) is arranged at the position of the machine case corresponding to the tobacco leaf placing device 3;

the tobacco leaf transmission device 1 comprises three transmission wheels 11 which are positioned in the same vertical plane and have right-angled triangle connecting lines of wheel centers and a transmission belt tensioned by the transmission wheels 11, the transmission belt is tensioned into a horizontal section 12, a vertical section 13 and an inclined section 14 which are sequentially arranged, and the transmission wheels 11 at the horizontal section 12 and the inclined section 14 are connected with the output end of a motor 15;

the tobacco leaf suction device 2 comprises a negative pressure suction nozzle arranged on the horizontal section 12 of the transmission belt and a negative pressure mechanism communicated with the negative pressure suction nozzle, the negative pressure suction nozzle comprises a silica gel suction nozzle 21 with an upper opening and a lower opening and a sealing cylinder 22 with a closed bottom and connected with the transmission belt 11, the top of the sealing cylinder 22 is integrally connected with the bottom of the silica gel suction nozzle 21, the negative pressure mechanism comprises a bending pipe 23 arranged in parallel with the horizontal section 12 of the transmission belt and the vertical section 13, the bending pipe 23 is hollow and has two closed ends, an exhaust fan 27 is arranged at the bottom of the bending pipe 23, an air inlet of the exhaust fan 27 is communicated with the bending pipe 23, and an air outlet of the exhaust; the pipe body of the bent pipe 23 facing the transmission belt is provided with a channel 25, two sides of the channel 25 are provided with adhesive tape pieces 26 for shielding the channel 25, one end of an exhaust pipe 24 which is in sliding fit with the channel 25 is connected and communicated with a sealing cylinder 22 of the negative pressure suction nozzle, and the other end of the exhaust pipe extrudes the adhesive tape pieces 26 and then penetrates through the channel and is communicated with the bent pipe 23.

The tobacco leaf placing device 3 comprises a placing rack 31 arranged beside the vertical section 13 of the transmission belt and a plate shifting mechanism 4 arranged beside the placing rack 31, and the plane of the placing rack 31 is vertical to the plane of the three transmission wheels 11 of the tobacco leaf transmission device;

the plate shifting mechanism 4 comprises two belt pulleys 41 arranged up and down and a belt 42 tensioned by the two belt pulleys 41, and two shifting plates 43 are arranged on the belt 42 at equal intervals; the bottom belt pulley 41 of the plate shifting mechanism, the transmission wheel 11 at the vertical section 13 and the inclined section 14 of the transmission belt are transmitted through a one-way transmission mechanism 5, the one-way transmission mechanism 5 comprises a first transmission rod 51 and a second transmission rod 52 which are respectively connected with the wheel centers of the transmission wheel 11 and the belt pulley 41, the end part of the first transmission rod 51 is fixedly provided with a ratchet wheel 53, the outside of the ratchet wheel 53 is arranged in one end of a sleeve 54 and is meshed with a pawl 55 in the sleeve 54, the pawl 55 is arranged in a hinged seat on the inner wall of the sleeve 54 and is limited by a torsion spring on the hinged seat to keep a state of being arranged towards the placing frame 31, and the other end of the sleeve 54 is; the end of the second transmission rod 52 is provided with an indirect wheel 57, and the indirect wheel 57 is in transmission connection with the sleeve 54 through an indirect belt 58 tensioned by the two.

A plurality of through holes 32 extending horizontally are formed in the frame plate of the placing frame 31 at equal intervals from top to bottom, the through holes 32 are oblique holes, one end of the placing plate 6 in the width direction penetrates through the corresponding through hole 32, and the other end of the placing plate is in intermittent contact with a shifting plate 43 of the shifting plate mechanism; the placing plate 6 which is in clearance fit with the through hole 32 is in an inclined state that one end facing the transmission belt is arranged at the upper end and the other end is arranged at the lower end, one end of the placing plate 6 facing the transmission belt is a length side edge of the placing plate, two ends of the placing plate are provided with limiting rods 61, a groove 62 used for placing tobacco leaves is arranged on a top plate body of the placing plate 61, a first notch 63 allowing a negative pressure suction nozzle to penetrate through is arranged at the middle section of the length of the groove 62, a second notch 64 used for completely exposing a tobacco leaf stalk is arranged at one end of the groove 62 in the length direction, and the groove depth of the groove 62 is 1. One end of the placing plate 6, which is far away from the transmission belt, namely the other length side edge of the placing plate is provided with a top plate 65 in an upward inclined manner, the top plate 65 and the shifting plate 43 of the plate shifting mechanism are arranged in parallel, and the bottom edge of the shifting plate 43 is in contact with the top edge of the top plate 65, and the bottom of the top plate 65 abuts against the plate body of the placing frame 31 at the through hole 32.

The smoke inlet device 7 comprises a rectangular smoke inlet pipe 71, the length direction of the smoke inlet pipe 71 is perpendicular to the horizontal section 12 of the transmission belt, two sides of the length direction of the bottom of the smoke inlet pipe 71 are integrally connected with guide plates 72, the bottoms of the guide plates 72 are back-to-back, horizontally and oppositely extending limiting plates 721 are fixedly arranged at the bottoms of the two guide plates 72, two equal-height and parallel support rods 73 are arranged between the two guide plates 72, each support rod 73 is arranged by being attached to the inner wall of the guide plate 72 and is connected with two support wheels 731 through a support pin shaft, the support wheels 731 on the two support rods are oppositely and correspondingly arranged, the end parts of the two support rods 73 are respectively and fixedly connected with two ends of a telescopic rod 732, and the telescopic rod;

the tobacco feeding device 7 also comprises a driving wheel 74 arranged on the guide plate 72 close to the tobacco placing device 3, and the driving wheel 74 is in transmission connection with a driving wheel 79 arranged on the axle of the driving wheel 11 at the horizontal section 12 and the vertical section 13 of the driving belt through a belt or a chain;

the driving wheel 74 and the first driven wheel 75 are coaxially arranged, the first driven wheel 75 and a first tension wheel 751 above the first driven wheel are driven by a first belt 752, a second driven wheel (not shown) and a second tension wheel (not shown) are matched with a belt drive formed by a second belt (not shown) and correspondingly arranged on the other guide plate 72, the first belt 752 and the second belt are respectively arranged in parallel with the corresponding guide plate 72, a plurality of silica gel supporting plates 78 are arranged on the first belt 752 and the second belt at equal intervals, and the silica gel supporting plates 78 on the belt section of the first belt and the second belt between the two guide plates are used for supporting the corresponding supporting rods 73. The first tensioning wheel 751 is also coaxially arranged with the third driven wheel 76, the third driven wheel 76 is in transmission with a third tensioning wheel 761 arranged on the outer wall of the smoke inlet pipe 71 through a third belt 762, the third tensioning wheel 761 is coaxially provided with a smoke inlet driving gear 77, the smoke inlet driving gear 77 is meshed with a smoke inlet driven gear 771 arranged below the smoke inlet driving gear, and the smoke inlet driven gear 771 is coaxially arranged with the second tensioning wheel;

the shaft levers of the driving wheel and the driven wheel are respectively connected with a preset shaft sleeve support on the guide plate 72 through the shaft levers of the tensioning wheel, and notches 722 for matching with the wheel body of the wheel are formed in the guide plate 72 corresponding to the driving wheel, the driven wheel and the tensioning wheel;

Claims

1. A tobacco loading device for improving the grade of tobacco leaves after being cured is characterized by comprising a machine case, a tobacco leaf suction device, a tobacco leaf transmission device and a tobacco leaf placing device, wherein the tobacco leaf suction device, the tobacco leaf transmission device and the tobacco leaf placing device are arranged in the machine case;

2. The tobacco loading equipment for improving the grade of the flue-cured tobacco leaves as claimed in claim 1, wherein the negative pressure suction nozzle comprises a silica gel suction nozzle with an upper opening and a lower opening and a sealing cylinder with a closed bottom and connected with the transmission belt, and the top of the sealing cylinder is integrally connected with the bottom of the silica gel suction nozzle.

3. The tobacco loading equipment for improving the grade of the flue-cured tobacco leaves as claimed in claim 1, wherein the negative pressure mechanism comprises a bent pipe arranged in parallel with a horizontal section and a vertical section of the transmission belt, the bent pipe is hollow and closed at two ends, an exhaust fan is arranged at the bottom of the bent pipe, an air inlet of the exhaust fan is communicated with the bent pipe, and an air outlet of the exhaust fan is arranged away from the tobacco leaf placing device; the pipe of bending has seted up the channel on the body of drive belt, the channel both sides are equipped with the sticky tape piece that is used for shielding the channel, are connected and communicate the sealed section of thick bamboo of negative pressure suction nozzle, the sticky tape piece is expulsed to the other end with channel sliding fit's exhaust column one end and pass the channel and with the pipe intercommunication of bending after.

4. The tobacco loading device for improving the grade of the roasted tobacco leaves according to claim 1, wherein the bottom belt pulley of the plate pulling mechanism and the transmission wheels at the vertical section and the inclined section of the transmission belt are driven by a one-way transmission mechanism, the one-way transmission mechanism comprises a first transmission rod and a second transmission rod which are respectively connected with the transmission wheels and the wheel center of the belt pulley,

5. The tobacco loading device for improving the grade of the roasted tobacco leaves according to claim 1, wherein the through holes on the rack plate are inclined holes, and the placing plate matched with the through holes is in an inclined state that one end of the driving belt is upward and the other end of the driving belt is downward.

6. The tobacco loading equipment for improving the grade of the flue-cured tobacco leaves as claimed in claim 5, wherein the placing plate faces one end of the driving belt, namely one length side of the placing plate, limiting rods are arranged at two ends of the placing plate, a groove for placing the tobacco leaves is arranged on a top plate body of the placing plate, a first notch for a negative pressure suction nozzle to pass through is arranged at the middle section of the length of the groove, a second notch for completely exposing a tobacco leaf stalk is arranged at one end of the length direction of the groove, and the groove depth of the groove is 1-2 mm.

7. The tobacco loading equipment for improving the roasted grade of the tobacco leaves as claimed in claim 6, wherein one end of the placing plate far away from the transmission belt, namely the other length side edge of the placing plate, is provided with a top plate in an upward inclined way, and the top plate is arranged in parallel with the shifting plate of the plate shifting mechanism.

8. The tobacco loading device for increasing the post-curing grade of tobacco leaves according to claim 7, wherein the bottom of the top plate is in contact with the shelf plate body at the through hole under the condition that the bottom edge of the poke plate is in contact with the top edge of the top plate.

9. The tobacco loading device for improving the grade of the flue-cured tobacco leaves as claimed in claim 1, wherein the plate body of the placing plate is in clearance fit with the through holes on the frame plate of the placing frame, and the plane of the placing frame is vertical to the plane of the three driving wheels of the tobacco leaf driving device.

10. The tobacco loading equipment for improving the roasted grade of the tobacco leaves according to claim 1, wherein shaft rods of the driving wheel and the driven wheel are respectively connected with shaft sleeve supports preset on the guide plate through shaft rods of the tensioning wheel, and notches for matching with wheel bodies of the wheels are formed on the guide plate corresponding to the driving wheel, the driven wheel and the tensioning wheel;